Tile or brick kiln



(No Model.) 2 Sheets-Sheet 1.

R. W. STEWART. TILE 0R BRICK KILN.

No. 427,201. Patented May 6, 1890.

(No Model.) 2 Sheets-Sheet 2.

R. W. SflEWART.l TILE 0R BRICK KILN.

No. 427,201. Patented May 6, 1890 Ni-Tnn *mf-rss `ATENT FFICE.

ROBERT WV. STEVART, OF MOUNT VICTORY, OI-lIO.

TiLEoR'BRlCKKmN. i

SPECIFICATION forming part of Letters Patent No. 427,201, dated May 6, 1890.

Application tiled `Tune 1, 1888. Serial No. 275,777. (No model.)

To all whom t may concern:

Beit known that I, ROBERT WV. STEWART, a citizen of the United States, and a resident of Mount Victory, in the county of Hardin and State of Ohio, have invented a new and useful Improvement in Tile-Kilns, of which the following is a specification.

My invention relates to improvements in tile-kilns.

Figure 1 is a front perspective view with the front wall cut away to show the interior arrangement, and showing the construction of the chimneys and lines Fig. 2, a top perspective View of the iiues underneath the floor, showing fines and part of floor and the furnace with the walls left off; Fig. 3, a top sec-v exit for heat and smoke into the chimneys L, furnaces; M, cross-passage, into which the heat passes from the furnaces on its way to the floor I; N, packing of earth; Q Q2, iirebrick arranged in series over the passages M; P T, fines running across under the iioor I; S, brick around the earth filling; U, opening from the passages M up into the flues P T; O Q, nre-brick plates placed over the alternate ends of each series of iiues, as shown in Fig. 2; S, fire-brick wall around the packing of clay or earth N.

The construction and operation are as follows: I rst build a rectangular wall S some twenty-six inches high, and inside it put a filling of earth or clay N, well tamped down. Around these walls I leave an eight-inch firespace M, into which the furnaces L, built at two sides of the rectangle, open. The furnace-walls are built of tire-clay and covered with fire-tile some four inches thick. Across the top of the earth or clay tamping N, I build a series of horizontal iiues P T, and on top of these, but not reaching to the end, I lay a iirebrick floor. Over the space M and resting on the wall S and on the wall of the furnace L, I build a series of boxes of fire-tile corresponding to the number of flues and opening into the fines P T. These boxes are open and closed at the top and bottom alternately, as shown in Fig. 2, at each end, the ones T being closed at the bottom on one end and the ones P being arranged in a corresponding manner, thus: the first or left-hand one, say, is closed at the bottom in the front of the drawing, so that the fire from the furnace L and passage M cannot enter it, while the flue next to it P shows a passage U from the passage M to admit the fire from the furnace into and through the Hue, each alternate flue being open and closed at the bottom, as shown, while at the other end of the flues the order is reversed, the first flue T being open at the top and closed at the bottom. By this arrangement it will be readilyseen that the iire from the furnaces L will pass into passage M and up through openings U into and through the fines P, underneath the iioor I and out at the top of the other end of the fine, while the iire from the furnaces L will pass in at the bottom of iiue T, through it, and out at its top at the other extremity. On top of these boxes I build two -sets of walls E and G, extending around the four sides. The outer walls E extend up and intersect the dome or crown of the kiln, while the inner ones do not reach clear to the top. Outside of both of these walls and separated from them is the main wall A of the kiln. The top openings O from the flues open into the space between the walls E and G, but not into the space between A and E, which is only a cold-air space. It will now be seen that when the fire is kindledsay in furnace L-the heat will pass into the passage M, up through the openings U, along the flues P, and up out of the other end into the space F and up over wall G into the interior of the kiln, where the tile are packed for burning, and down through these and through the exits K into the space between the end walls G and E, and out through the chimneys O. The iire kindled in furnaces L will enter passage M, and thence through openings in the bottoms of the boxes into passages O, passing through them and out at the farther end into space F between the walls E G, up over wall G, down through the fire-chamber, and out the exits K at the bottom in a manner similar to theabove. By

IOD

this arrangement it Will be seen that the ire and provided with entrances for the heat at from each furnace crosses underneath the the top, on both sides, and exits atthe bottom floor of the tile-chamber, up through the flues at both ends, of the furnaces L, passages M M', F F at the side of the chamber, and down and theues P T beneath the door alternately 5 through the tile-room proper, thus making a opening into the fines F F, as and for the 15 complete circuit of Vfire around the tile, so as purpose set forth.

to burn bottom, top, sides, and corners alike. ROBERT W. STEWART.

What I claim is- Witnesses: In a tile-kiln, the combination, with the E. K. CAMPBELL, ro burning-chamber having a thin smooth floor M. E. CAMPBELL. 

